Pass power window off and on...
 

My passenger power window works sometimes and then stops working. This has been happening on and off for the past month or so. It this a problem with the window switch or do I need to take off the door panel and check the connections? Has this happened to anyone before?

It could be either, but I would lean toward the switch.

The switch commonly fills with dust and debris and when my kids were small, crumbs. The good news is that you can remove these switches and carefully pry them apart with a small screwdriver, clean them and put them back together. Of done it a number of times with great success.